I am confused. Is the fw_init definition (not just an extern declaration) in
the source you compile in (A.c or disk_image.cc)? If so, why do you need the
library?
The "-v" has to go at the end. You don't want to know the version of scons, but
tell it to be verbose :-)
Andreas
From: Hasan Ijaz <[email protected]<mailto:[email protected]>>
Reply-To: Hasan Ijaz <[email protected]<mailto:[email protected]>>,
gem5 users mailing list <[email protected]<mailto:[email protected]>>
Date: Wednesday, 17 April 2013 08:59
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Re: [gem5-users] Error while Linking static Library with GEM5
Hi,
I figured something out. Here is the scenario. In the
gem5-stable/dev/Sconscript file I have these two files:
Source('A.c')
Source('disk_image.cc')
Consider the function fw_inti(). If i place my function fw_init() in the A.c
file it compiles and links successfully. However if I put it in the
disk_image.cc file it does not.
And if I remove the line
main.Append(LIBS = ['fw']) in the SConstruct file
the function stops being linked in both the files. Which means that scons is
taking the right library path and is linking the function fw_init() when it is
placed in the A.c file. However it is unable to link when the function is in
the .cc file.
Does this seem absurd? What am I missing?
Regards,
Hasan Ijaz
________________________________
From: Andreas Hansson <[email protected]<mailto:[email protected]>>
To: Hasan Ijaz <[email protected]<mailto:[email protected]>>; gem5
users mailing list <[email protected]<mailto:[email protected]>>
Sent: Wednesday, April 17, 2013 5:04 PM
Subject: Re: [gem5-users] Error while Linking static Library with GEM5
Hi Hasan,
What you have done looks absolutely right, with the exception that you should
not inlude "lib" in the library name. Thus, LIBS = ['fw']. You can always run
scons with "-v" and have a look at the linking command line to ensure it is
correct.
Good luck.
Andreas
From: Hasan Ijaz <[email protected]<mailto:[email protected]>>
Reply-To: Hasan Ijaz <[email protected]<mailto:[email protected]>>,
gem5 users mailing list <[email protected]<mailto:[email protected]>>
Date: Wednesday, 17 April 2013 06:54
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: [gem5-users] Error while Linking static Library with GEM5
Hi,
I am trying to compile a software framework with GEM5. I have compiled
my code into a static library using make. After that I have added these lines
to SContruct file:
# add the framework library path to the main environment
main.Append(CPPPATH =
['/home/opensilicon/Codes/gem5-stable/src/dev/framework/include'])
main.Append(LIBPATH = ['/home/opensilicon/Codes/gem5-stable/src/dev'])
main.Append(LIBS = ['libfw'])
I am calling functions from the library in the Disk_Image.cc file. It
compiles successfully but during Linking I get the following error:
In function `SsdDiskImage':
/home/opensilicon/Codes/gem5-stable/build/X86/dev/disk_image.cc:63: undefined
reference to `fw_init(unsigned char)'
Although this function compiles suceessfully and is in the lib. What am I
missing?
Regards,
Hasan Ijaz
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